Headlight dimmer



G. R. MARCOTTE.

HEADLIGHT DIMMER.

APPLICATION FILED JUNE 10. 1921.

1 ALSQ SLOZ Patented; Oct. 31, 11922,.

INVENTOR WITNESS: ATTORNEY Patented @ct. 31, 12922.

UNHTEID STATES ILA-3343M Parana orsica.

HEADLIGHT DIMIVIER.

' Application filed .Tune 10,

T 0 all whom it may concern:

Be it known that I, GEORGE E. MARCOTTE, a citizen of the United States,residing at Brockton, in the county of Plymouth and State ofMassachusetts, have invented new and useful Improvements in HeadlightDimmers, of which the following is a specification.

This invention'relates to the headlights on automobiles or othervehicles and has for its object the provision of an attachment whichwill operate to remove the glare by cutting off the rays of light whichare ordinarily projected upwardly into the eyes of the pedestrian ordriver of an approaching automobile, the device further operating toconcentrate the rays of light upon the ground at the proper distance infront of the automobile to facilitate safe driving.

An additional object is the provision of a device of this characterwhich is so constructed that the light will also be permitted to diffuseover the area along the sides of a road instead of being concentratedmerely in spots.

A further object is the provision of a device of this character whichmay be adjustably mounted upon the head-light whereby the inclinationmay be varied for adjusting the distance at which the rays of light willstrike the ground.

Another object is the provision of a device of this character which willbe simple and inexpensive in manufacture and installation, highlyefficient in use, durable in service and a general improvement in theart.

With the above and other objects and advantages in view, the inventionconsists in the details of construction to be hereinafter more fullydescribed and claimed, and illustrated in the accompanying drawings, inwhich Figure 1 is a front elevation of my device in applied position,

Figure 2 is a side elevation, and

Figure 3 is a perspective view of the device detached.

Referring more particularly to the drawings the letter A designates ahead light of ordinary construction and which may be of any sizecommonly used on motor vehicles. In carrying out my invention ll providean anti-glare or dimming device which of 1921. Serial No. 476,515.

course must be made in various-sizes for use in connection with lamps ofdifferent sizes.

My dimming device is formed as a shell 10 constructed preferably ofsheet metal and having one end cylindrical as indicated at 1 1 forassociation with the headlights. Formed upon this cylindrical portion ofthe shell is a forwardly extending hood portion 12 which has its loweredge at one side inclined as shown at 13 and which has one side portioncut away as indicated at 14, for a purpose to be described. Securedwithin the shell. 10 is a series of plates 15 of progressivelyincreasing length suitably secured to the shell as by means of solderingor by any other desired means. These plates 15 are preferably spacedsubstantially equal distances apart and may be of any desired number.Likewise the plates are parallel with the axis of the cylindrical shellas shown. Incidentally it may be advisable that the inner surface of theshell be painted black and that either or both surfaces of the platesmay be coated with a black material.

It is of course conceivable that the dimming device may be secured uponthe head lamp in any one of a variety of ways though in actual practiceI have found that an advisable arrangement is that the cylindricalportion 11 of the shell is pivoted at its top edge upon the front of alamp as indicated at 16. At opposite sides the cylindrical portion ispreferably provided with arcuate slots 17 which receive threaded studs18 projecting from the sides of the lamp and carrying thumb nuts 19. Bythis construction it will be seen that the dimming device may beinclined downwardly at a greater or less extent as preferred. It Wlll beobserved that the top of the device extends rearwardly to a greaterextent than the lower portion so that this pitch may be determined. 1

lln the use of the device it will be seen that when the dimmer isinclined slightly downwardly the rays of light issuing from a lamp orlight A will naturally be deflected downwardly onto the roadway so as toeliminate glare. At the same time the'cut away portion at the outer sideof the dimmer will permit a certain amount of the light to passlaterally on the road way for illuminating the area at the sides of theroad.

From the foregoing description and a study of the drawings it will beapparent '-that I have thus provided a simply con I structed, easilyapplied and adjusted dim- I reserve the right to make such changes inthe form, construction and arrangement of parts as will not depart fromthe spirit joined claim.

Having thus described the invention I claim:

A headlight dimming device comprising a shell adjustably mounted upon ahead lamp and provided internally with plates, 20

the side of the shell toward the side of the vehicle being partially cutaway, whereby to permit light tobe thrown laterally onto the sides ofthe roadway. Y

of the invention or the scope of the sub- In testimony whereof l afiixmy signature. 25

- GEORGE R. MARCOTTE.

